Washing Machine

Front-loading washing machines are generally cheaper to run than top-loading automatics.

Water temperature
Many modern fabrics and laundry detergents usually give excellent results in cold water. If it isn't doing the job, try warm wash before selecting hot.

Wash size
Washing a single item can use as much power and water as doing a full load. Leave clothes until you can do a full wash. (Check the manufacturer's recommendations for your machine's capacity.)

Clothes Dryer

Lint filter
Clean the filter before every load. A blocked filter means you use more electricity.

Temperature settings
Reset the temperature with each load. High temperatures use more power, and can shrink or damage some fabrics.

Air exhaust
High humidity in the laundry prevents the dryer from working at its best. The heated, humid air coming out of your dryer should be directed outside. Create air flow by opening doors and windows.

Wet clothes
Dripping wet clothes should not be placed in a dryer. Spin dry first.

More than one load
Try to do several loads one after the other. This makes use of the heat in the machine from the previous load. Don't forget the 'solar' option. Hanging clothes to dry uses no electricity and it’s free.

Iron 

Iron in batches
This way, you're not wasting electricity waiting for the iron to heat up each time.

Start with warm
Begin with clothes that can be ironed on the warm settings (synthetics) and work up to those that need a hot setting (denim).

Steam
Avoid using steam unless necessary. It uses extra electricity.